Genus: Thaspium
Nomenclature
Thaspium Nutt., Gen. N. Amer. Pl. 1: 196. 1818.List of Thaspium Species
References to Thaspium
- Hawkins, T. S. et.al. 2007. Seed morphology, germination phenology, and capacity to form a seed bank in six herbaceous layer Apiaceae species of the eastern deciduous forest. Castanea 72: 8-14.
- Lindsey, A. H. 1984. Reproductive biology of Apiaceae. I. Floral visitors to Thaspium and Zizia and their importance in pollination. Amer. J. Bot. 71: 375-387.
- Lindsey, A. H. 1982. Floral phenology patterns and breeding systems in Thaspium and Zizia (Apiaceae). Syst. Bot. 7: 1-12.
- Lindsey, A. H.; Bell, C. R. 1985. Reproductive biology of Apiaceae 2. Cryptic specialization and floral evolutoin in Thaspium and Zizia. Amer. J. Bot. 72: 231-247.